Okay, folks, let’s dive into my little project with the 250 4-stroke Suzuki. It wasn’t anything crazy, just some regular maintenance and a bit of tinkering.

So, I started by gathering all my tools. Nothing fancy, just the usual suspects: wrenches, sockets, oil pan, the works. I’m a big believer in having everything laid out before I get started. Makes life way easier. I also printed a simple maintenance schedule from the internet.
Oil Change Time
First up, the classic oil change. I warmed up the engine for a few minutes – just enough to get the oil flowing nicely. Then, I positioned the oil pan underneath and unscrewed the drain plug. I let it all drain out which is a must do step. You know, waiting is a bit boring, so I usually grab a drink or check something else. Once it was all drained, I replaced the drain plug, making sure it was snug but not overly tight.
Next, I moved on to the oil filter. That’s a bit tricky sometimes. I removed the old one, and put a little bit of fresh oil on the rubber gasket of the new filter before screwing it on. Hand-tight, plus a little extra, is my rule of thumb.
Finally, I refilled the engine with fresh oil. The manual has detailed guidance, so I carefully added oil step by step. I checked the dipstick a couple of times to make sure I got the level just right.
Spark Plugs
After the oil, I decided to check the spark plugs. I took them out one by one. They looked okay, a little bit of wear, but nothing major. I considered replacing them, but I decided to just clean them up with a wire brush and put them back in. I checked the gap, made sure it was to spec, and carefully reinstalled everything.

Coolant Check
I also took a quick look at the coolant level. It was a bit low, so I topped it off with the recommended mixture. Simple, but important.
Overall
That’s pretty much it. Nothing groundbreaking, just some basic maintenance to keep things running smoothly. It’s always satisfying to do these things myself. I feel I know the engine is good after all the work.